54 lines
1.4 KiB
PHP
54 lines
1.4 KiB
PHP
<?php
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namespace Middlewares;
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require '../vendor/autoload.php';
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use \Slim\Http\Request as Request;
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use \Slim\Http\Response as Response;
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class ClientIp
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{
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/** @var \Monolog\Logger */
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private $logger;
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/** @var \Slim\Container */
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private $container;
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public function __construct(\Slim\Container $c)
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{
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$this->logger = $c->logger;
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$this->container = $c;
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}
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public function __invoke(Request $req, Response $res, callable $next)
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{
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$proxys = $this->container['config']['proxys'];
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$headerContent = $req->getHeaderLine('X-Forwarded-For');
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if (strlen($headerContent) === 0) {
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$ip = $_SERVER['REMOTE_ADDR'];
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} else {
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if (!in_array($_SERVER['REMOTE_ADDR'], $proxys)) { // Client is not trusted proxy
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$ip = $_SERVER['REMOTE_ADDR'];
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} else {
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$parts = array_map('trim', explode(',', $headerContent));
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$ip = $_SERVER['REMOTE_ADDR'];
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for ($i = count($parts) - 1; $i >= 0; $i--) {
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if (in_array($parts[$i], $proxys) && $i > 0) {
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$ip = $parts[$i - 1];
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} else {
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break;
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}
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}
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}
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}
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$req = $req->withAttribute('clientIp', $ip);
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return $next($req, $res);
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}
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}
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